🚨 Alert #1015 Tue Jul-28 15:43:06
Nvidia shares dropped approximately 5% amid a broader semiconductor and tech stock sell-off driven by rising Federal Reserve rate hike expectations and concerns over AI investment returns.
🎯 Tickers & verdicts
| ticker | direction | verdict | since close | 30m | day lo | day hi | intraday px |
|---|---|---|---|---|---|---|---|
| primary NVDA | ▼ bearish | REPRICING | -0.46% | +0.80% | 193.21 | 198.53 | |
| MU | ▼ bearish | PRICED | -10.13% | +0.90% | 774.65 | 848.99 | |
| PLTR | ▼ bearish | PRICED | -9.71% | -0.71% | 117.98 | 128.50 | |
| peer AMD | ▼ bearish | PRICED | -9.04% | +0.34% | 444.02 | 475.77 | |
| SMCI | ▼ bearish | PRICED | -7.38% | +0.88% | 27.27 | 28.69 | |
| ASML | ▼ bearish | PRICED | -5.12% | +0.58% | 1555.72 | 1598.06 | |
| TSM | ▼ bearish | PRICED | -4.12% | -0.17% | 381.24 | 395.36 | |
| QCOM | ▼ bearish | PRICED | -2.25% | +0.82% | 162.26 | 167.70 | |
| AVGO | ▼ bearish | REPRICING | -1.87% | +0.56% | 360.53 | 385.19 | |
| MSFT | ▼ bearish | PRICED | +1.51% | +0.18% | 391.72 | 399.95 | |
| AMZN | ▼ bearish | REPRICING | -1.39% | -0.77% | 228.16 | 234.02 | |
| META | ▼ bearish | FRESH | -0.61% | -0.37% | 587.04 | 600.38 | |
| GOOGL | ▼ bearish | FRESH | +0.26% | +0.01% | 325.28 | 335.89 | |
| AAPL | ▼ bearish | FRESH | +0.10% | -0.06% | 335.94 | 341.25 |
🧭 Decisions
| strategy | ticker | action | side | rationale |
|---|---|---|---|---|
| S1 | NVDA | ● enter | ▼ short | verdict REPRICING, direction bearish -> short NVDA (other: Nvidia shares dropped approximately 5% amid a broader semiconductor and tech stock sell-off driven by rising Federal Reserve rate hike expectations and concerns over AI investment returns.) [closed early: netted out by outranking S1 long NVDA decision 4153] |
| S2 | - | ○ skip | — | no counterparty in universe |
| S3 | AMD | ○ skip | — | verdict PRICED — Δ prev close -9.04% · Δ 30m +0.34% · px 450.20 (prev 494.95) → close +1.27% |
| S4 | NVDA | ○ skip | — | overnight drift: short NVDA at close, exit next close (other: Nvidia shares dropped approximately 5% amid a broader semiconductor and tech stock sell-off driven by rising Federal Reserve rate hike expectations and concerns over AI investment returns.) [skipped at close: outranked — mat 65 short lost to mat 90 long (decision 4368) for S4 NVDA exiting 2026-07-29] |
📈 Trades
| strategy | ticker | side | qty | entry | exit | P&L $ | status |
|---|---|---|---|---|---|---|---|
| S1 | NVDA | ▼ short | 5 | 196.07 | 196.87 | -4.00 | closed |
Retrospectives
| ticker | mfe | mae | reflection |
|---|---|---|---|
| NVDA S1 | +0.15% | -1.26% | Signal/timing: The rationale cited a ~5% drop that had already occurred — at entry the stock was only -0.46% from prior close and actually rising (+0.80% in the last 30m), so the short was chasing a move that was already priced in. While open the position never got more than +0.15% ahead and was down as much as -1.26%, so no meaningful bearish continuation materialized. Exit: The exit was mechanical, not signal-based — the trade was netted out by a conflicting long NVDA decision from another strategy leg. The -0.41% realized loss (-$4.00) landed between the +0.15% best and -1.26% worst, so the forced exit was roughly neutral, avoiding the worst but capturing nothing. Dominant factor: Stale timing — entering short after the drop already happened, compounded by the system simultaneously generating an opposing long signal on the same ticker, which forced the close. |
📖 Glossary
- S1 primary — trades the alert's primary ticker in the direction the article itself indicates; exits at the same day's close.
- S2 counterparty — trades the inferred counterparty ticker (weakest signal, LLM-inferred sympathy); exits at the same day's close.
- S3 peer — trades an inferred peer ticker (also LLM-inferred sympathy); exits at the same day's close.
- S4 overnight — holds the primary ticker from today's close to the NEXT day's close.
- Verdicts are decided top-to-bottom, first match wins; REPRICING is also the fallback when nothing else matches (2026-08-08 #220).
- UNKNOWN — a needed price input (move since close or move in the last 30m) is missing.
- PRICED — |move since previous close| ≥ 2.0%: already reflected in price.
- REPRICING — |move in the last 30m| ≥ 0.5%: the tape is actively moving on it. Also covers a quieter move — |move since previous close| in [1.0, 2.0) with a quiet last-30m tape: still developing, not yet priced.
- FRESH — |move since previous close| < 1.0%: a genuinely new move.
- materiality — how market-moving the story was judged, 0-100 — alerts require materiality ≥ 60.